To check what Ray is talking about, you should be able to push the slave pushrod back into its bore by hand. If you can't, you have over adjusted your master cyl and covered the fill/bleed hole. Once you do that, expanding fluid from heat will cause all sorts of wonkiness. Easiest to get perfect with two people, so top guy can adjust master 'til slave won't go in, then back off 'til it will. Remember you can also adjust the clutch switch which acts as an upper pedal stop to get more travel. If you adjust the switch, you must re-adjust the free play at the master.
Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com orders 1-800-FLY-MX5S tech support 970-242-3800 Don't miss Flyin' Miata's Open House! Aug 14-17, 2008 ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ray Ayala Sent: Saturday, March 29, 2008 3:06 PM To: Steve Willington; [email protected] Subject: Re: Clutch problems Perhaps you've already adjusted your pedal pushrod too far and the master isn't refilling properly when you let the pedal up. There should be a small but greater-than-zero gap between the pedal pushrod and the master cyl when the pedal is all the way up ... at all temperatures. ----- Original Message ----- From: Steve Willington <mailto:[EMAIL PROTECTED]> To: Ray Ayala <mailto:[EMAIL PROTECTED]> ; [email protected] Sent: Saturday, March 29, 2008 12:54 PM Subject: Re: Clutch problems I sorta guessed that and is the reason I went with the shorter new rod. Still was hoping it might be a quick fix to give me more peddle travel. How much adjustment is there in the MX5 hydraulic system? How will I know when I have adjusted it too far? BTW could there be anything mechanically wrong to give me these issues? Perhaps I am concentrating on the hydraulic system and should be looking elsewhere? Steve. www.slowmx5.com ----- Original Message ---- From: Ray Ayala <[EMAIL PROTECTED]> To: Steve Willington <[EMAIL PROTECTED]>; [email protected] Sent: Saturday, 29 March, 2008 5:15:24 PM Subject: Re: Clutch problems Push rod length is immaterial unless there is a gap at the end of the push rod when at rest. A slightly smaller bore in the slave or a slightly larger bore in the master will improve the situation. Note that new cylinders tend to have a smaller bore and rebuilt ones tend to have a larger bore. You might want to take your master cylinder to a shop to have the bore enlarged but if you over-do it the slave piston may extend too much and possibly even eject from its bore. ----- Original Message ----- From: Steve Willington <mailto:[EMAIL PROTECTED]> To: [email protected] Sent: Saturday, March 29, 2008 7:10 AM Subject: Clutch problems All, Looking for ideas on a clutch problem I'm having. I installed a new clutch assembly and flywheel a wheel a few months back. Initially it would not disengage properly at all but after breaking it in it got a lot better - but it still dis-engages just off the floor (lower than my ACT xtreme). Just recently it has occasionally refused to let me put the car into gear at all, especially when cold. It also seems to get a little worse the longer the clutch is down (although it bits practically on the floor so any change is noticeable). I changed the slave cylinder today to see if this would help - and it has made no difference, if anything, made things a little worse. On installing I noticed that the new slave cylinder 'push rod' is a little shorter than the original, by about 3 or 4mm (i.e. the distance between contacting the slave cylinders piston and the point the rod contacts the clutch release fork). Would installing the slightly longer rod give me more peddle travel/adjustment? Would replacing the master cylinder help at all? Anything else I can try? The peddle has been adjusted as far as it can be. Steve. www.slowmx5.com _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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